One of the most popular hard rock bands of the 70’s, 80’s and 90’s is Australia’s AC/DC. With classics such as “Highway to Hell” and “You Shook Me All Night Long,” their concerts were continually sold out. Their albums went platinum even though they never had a top-20 single on the charts. In 1978, Atlantic Records released their album “Powerage.” A red vinyl copy, as shown here, is worth up to $100.00 today.